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What is the oxygen content of the atmosphere?
The atmosphere is 79.9% oxygen.
What makes up the atmosphere of the planet mars?
Mars does have an atmosphere, but it doesn't have much. The thin atmosphere of Mars is almost entirely carbon dioxide (95.3%) with about 2.7% nitrogen and 1.6% argon. The free oxygen content is only about 0.13%, with most of the oxygen bound to the oxidized rock on the surface of the planet.
Why doesnt the moon have oxygen?
The moon has no oxygen because it has no atmosphere.
Do trees provide the most oxygen for the atmosphere?
Yes, trees do provide most of our oxygen for the atmosphere
What gives us most of our oxygen in the atmosphere?
Plants gives us most of our oxygen in the atmosphere.
What is the oxygen content of the atmosphere?
The atmosphere is 79.9% oxygen.
Is the oxygen in the Earth's atmosphere diminishing?
No it isn't. We still have about 21% oxygen content in the atmosphere.
What layer in the Earth's atmosphere holds the highest oxygen content?
Stratosphere
What effects does oxygen have on the earths atmosphere?
Without its oxygen content the Earth's atmosphere would be composed almost entirely of nitrogen and would be chemically inert; oxygen causes the atmosphere to be chemically active (and breathable by humans).
Was oxygen higher in the past?
Yes, The oxygen content in the atmosphere was higher in the past, particularly in the carboniferous period.
What is the oxygen content of air?
The oxygen content of air is approximately 21%. Nitrogen is the largest component of air as it takes up 78% of the atmosphere.
Is the oxygen content of the atmosphere lower higher or about the same as it was millions of years ago?
Lower .
Is the current oxygen content of the atmosphere lower higher or about the same as it was millions of years ago?
Lower .
Is the current oxygen content of the atmosphere lower higher or about the same as it was millions years ago?
Lower .
Why is oxygen content tested first?
because most combustible gas meters are oxygen dependent and will not provide reliable readings in an oxygen deficient atmosphere .. balls
What is considered to be an oxygen-deficient atmosphere?
The absence of free atmospheric oxygen means that the atmosphere does not contain any elemental oxygen (O2). Any oxygen is locked away in compounds such as carbon dioxide.
Which major physical change could be attributed to photosynthesis?
Photosynthesis drastically increased the oxygen content of the atmosphere.
